if the average of 31 elements of an arithmetic sequence is 53 and element 13 of the sequence is 44 what would element 20 be

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal